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BillionVerify pricing and alternatives: email verification API, POST /verify/disposable

BillionVerify's sitellms.txtBest email verification API in 2026

Is BillionVerify yours? Write to us about this page. We invite selected tool providers to our WhatsApp group.

50% complete: 3 of the 6 key fields we checkSee the 6 fields
no limita flat fee, as many calls as you likeWe rank 2,467 plans by price. treg's top-up from $10 costs the least per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $26.95 per 1,000 emails when no provider answers.Enrich.so, GetProspect and treg are the best email verification API providers in our benchmark.
Plan: Starter one of BillionVerify's 18 plans
Call: POST /verify/disposable one of BillionVerify's 4 calls
API: Email verification API BillionVerify's only API

About this item

  • Stored. BillionVerify may answer from BillionVerify's stored data instead of asking the mail server. BillionVerify doesn't say how old the data is.
  • 3 of the 6 key fields we check. Address, Deliverability, Company.
  • A pack you buy once. You pay $20 for 20,000 credits, which pay for BillionVerify's other calls. This call costs none of them for up to 259,200,000 calls a month. Credits never expire.
  • One call. You send email to POST /verify/disposable. The call returns whether the address takes mail.
  • Who can get it: with conditions. Keep data: no limit. Use data: with conditions.

BillionVerify: email verification API alternatives

We list other providers' plans that you pay for up front. These plans come closest to this plan in number of key fields.

This planBillionVerify, $20 pack, Starter, POST /verify/disposableRouterGrowth, top-up from $10Sixtyfour, top-up from $50Strale, top-up from €10, Prepaid wallet, POST /v1/do, Email ValidationEnvoAPI, $29 pack, Starter top-up, GET /v1/emails/disposable
$ per 1,000 emailsno limitnot publishednot publishednot publishednot published
Completeness50%50%50%50%33%
Billingpay firstpay firstpay firstpay firstpay first
Pay$20$10$50€10$29
Enough for259,200,000 calls a monthnot publishedas many as you pay foras many as you pay fornot published
Freshnessstoredunknownlivestoredstored
Who can get itanyone at least 18 years old and legally able to enter into a contract, for their internal business purposes onlyanyoneanyone aged 18 or overanyonesubscribers to a paid plan: anyone, for lawful, professional B2B purposes, not in a sanctioned jurisdiction or on a restricted-party list

Every email verification API provider we score, ranked

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-26.

  1. api.billionverify.com/openapi.yaml
  2. billionverify.com/docs/api-reference.md
  3. billionverify.com/email-verification-api.md
  4. billionverify.com/help.md
  5. billionverify.com/help/disposable-emails-are-free.md
  6. billionverify.com/help/do-credits-expire.md
  7. billionverify.com/help/no-charge-for-recheck-within-24h.md
  8. billionverify.com/help/what-does-catch-all-mean.md
  9. billionverify.com/help/which-results-are-charged.md
  10. billionverify.com/llms-full.txt
  11. billionverify.com/llms.txt
  12. billionverify.com/pricing
  13. billionverify.com/pricing.md
  14. billionverify.com/terms

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

  • Address
  • Deliverability
  • Confidence, not in the answer
  • Name, not in the answer
  • Place, not in the answer
  • Company
Price
$ per 1,000 emailsno limit
Percall
Billingpay first
Aggregators
Aggregatorsnone
Charges
Also pays fornothing else
Not found
$ per 1,000$0.00
In their words
Their pitchCheck whether an email address belongs to a known disposable (temporary) email provider. This endpoint is free — it performs an in-memory domain lookup and does not consume any credits.
Data
Freshnessstored
Keep datano limit
Use dataYou may not use the Service to: Violate anti-spam, privacy, consumer protection, or data protection laws. Submit data you do not have the lawful right to process. Abuse promotional offers, bypass rate limits, probe our systems, or attempt unauthorized access. Reverse engineer, copy, resell, sublicense, or build a competing service using the Service except as expressly permitted by us in writing. [...] Subject to these Terms, we grant you a limited, revocable, non-exclusive, non-transferable right to use the Service for your internal business purposes.
Plan
Pay$20
You get20,000 credits
Enough for259,200,000 calls a month
Expiresnever
Rate limit
Per second100
Batch1
Speed
Answerin the call
The call
You sendemail
MethodPOST
Path/verify/disposable
About the plan
PlanStarter
Who can get itanyone at least 18 years old and legally able to enter into a contract, for their internal business purposes only
The 4 fields the plan's answer can hold

email, domain, disposable, checked at

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